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Pt. V-VII have title: Supplementary investigations of infra-red spectra
[v. 1] pt. I. Infra-red absorption spectra. pt. II. Infra-red emission spectra.--[v. 2] pt. III. Infra-red transmission spectra. pt. IV. Infra-red reflection spectra.--[v. 3] pt. V. Infra-red reflection spectra. pt. VI. Infra-red transmission spectra. pt. VII. Infra-red emission spectra